If you're looking for a double-diamond run that will scare the ski pants off you and possibly make you weep, S1 is the one and only. The second in the series of north-facing (and thus snow-holding) steeps known as the Dumps, S1 flows from International off Ruthie's lift (you can also link runs to access it from the Silver Queen Gondola, which allows you to check it out to the right on your way up). This shorty is so vertical that it feels like you're standing on top of an eighty-story building, albeit one covered with rocks and lined with tight, tight trees. You have two choices here: Take the blind rollover and hit the air to drop in, or curl up in a little ball and hope some other crazy person finds you.
Readers' Choice: Pallavicini